Water closet



July 18, 1939.

J. M. TEAHEN 2,166,573

WATER CLOSET 1 Filed Feb. 7, 193a FIG.I..

FIG-.2.

INVENTOR JAMES M. TEAHEN 9033mm www- ATTORNEYS Patented July 18, 1939 TED: STAT ES WATER CLOSET James M. Teahen, Detroit; Mich.

Application February I 7,

" Claims.

The invention relates to water closets and has more-particular referenceto a noiseless construction of rim flush. It has long been recognized inthe art that it -is' exceedingly difiicult to prevent 5 noise during theflushing operation. One source of noise is the commingling of the waterwith entrained air so that during discharge there will be a hissingnoise. Various attempts have been made to avoid this difficulty but sofar as I am aware none of these has been fully successful.

It is, therefore, the primary object of the present invention to attainthis noiseless discharge which is accomplished by the construction ashereinafter set forth.

In the drawing:

Figure 1 is a vertical longitudinal section through a water closet bowlof my improved construction;

Figure 2 is a sectional plan View thereof.

As shown, A is the water closet bowl; B the hollow rim and C a series ofdownwardly directed water discharge ports from the rim which are tangentto the inner surface of the bowl. D is the water inlet passage to therim which is supplied 5 with water from any suitable flushing apparatus,

not shown.

With the construction as thus far described, Whenever water entersthrough the passage D into the hollow rim, the air within the rim must30 be displaced and the usual result is that it is entrained with thewater and passes downward through the port C, thereby making anobjectionable noise. To avoid such result I have provided the followingconstruction. E are partitions 35 across the hollow rim spaced from eachother to form a chamber F, preferably located in the rim at a pointsubstantially diametrically opposite the inlet D. These partitions donot extend completely to the top of the hollow rim, but leave ports Ethereover, which permits the displaced air to pass into the chamber F.The partitions E are also preferably obliquely inclined upward towardthese ports so that the water when it finally reaches the partitionswill be directed upward through the ports and into said chamber F. Belowthe chamber F is a passage G which extends downward in the wall of thebowl. to a point but slightly above the normal level of the water seal.The passage G is connected to the chamber F by a port H and the crosssectional areas of these ports and the passage is such as to provide forfree displacement of the air within the hollow rim and withoutappreciably increasing the pressure thereon.

With the construction as described in operation,

1938, Serial-2N0. 189,210 (o1. 4 69)' when water from. the flushingapparatus flows through: the passage D- into the hollow rim. it willdrive the air out: of said. rim. through: theports; E. into the chamber:F, then downward through the port H into the passage G, finally escapinginto the bowl above the water seal. As soon as the water hassubstantially filled the hollow rim and before it passes through theports E and into the chamber F the discharge of water through the portsC will raise the level in the bowl. This in turn will seal the lower endof the passage G so as to cut off direct communication betweenthe sameand the external atmosphere. Thus, any noise that may be developed bycommingled air and water passing through the ports E, chamber F, andinto the passage G, will not be communicated to the external atmosphere,but will be muffled if not completely destroyed by the water seal. Inother words, where there is atmospheric communication d between thechamber and the external atmosphere, any noise developed in the formerwill be communicated to the latter. If, however, there is a solid orliquid seal between said chamber and the external atmosphere, then thenoise so developed will be largely destroyed.

It will be evident from the above that my improved constructionaccomplishes two objects which are instrumental in eliminating noise:first, the free venting of the hollow rim for the displacement of airtherefrom; and second, the sealing of this vent before the entrance ofwater thereinto which might develop noise. If the vent were sealed atthe beginning then the air would need to break this seal, which initself might create some noise. On the other hand, if the vent were leftopen all the time, then noise would be developed therein as soon asreached by the, water from the rim. However, there would be a lesseningof noise even if the vent were sealed at the beginning, provided thatsuch seal did not develop too high a resistant pressure to the escape ofair. The essential feature is that means is provided for thedisplacement of air from the rim other than through the discharge portsfor the water.

-What I claim as my invention is:

1. In a water closet, the combination with a bowl having a hollow rimwith downwardly directed discharge ports therein, of means for supplyingwater to said rim, an air vent from the rim normally open to theexternal atmosphere and located at a point removed from said watersupply being of sufficient area for escape of air with negligible risein pressure, and means for sealing said atmospheric opening when the airfrom the rim is substantially displaced.

2. In a water closet, the combination with a bowl having a hollow rimwith downwardly directed water discharge ports therein, of means forsupplying water to said rim, and an air vent conduit for the rim locatedat a point removed from said water supply and extending downward in thebowl to a point slightly above the water seal therein being ofsufiicient area for escape of air with negligible increase in pressureand whereby the initial rise of Water level in the bowl will seal saidvent.

3. In a water closet, the combination with a bowl having a hollow rimwith downwardly directed water discharge ports therein, of means forsupplying water to said rim and directing the same around opposite sidesthereof, andmeans for venting said rim located substantiallydiametrically opposite said water supply including a conduit extendingdownward in said bowl and terminating slightly above the normal waterseal being of sufficient area for escape of air with negligible increasein pressure and whereby air within the rim is first displaced throughsaid vent and the latter is then sealed by the initial rise of level inthe bowl.

4. In a water closet, the combination with a bowl having a hollow rimwith downwardly directed discharge ports therein, of means for supplyingwater to said rim, a passage other than said discharge ports throughwhich air is displaced from said rim being of sufiicient area for escapeof air with negligible rise in pressure, and means for sealing saidpassage when the air from the rim is substantially displaced. r 5. In awater closet, the combination with a bowl having a hollow rim withdownwardly directed discharge ports therein, of means for supplyingwater to said rim, an air vent from the rim located at a point removedfrom said water supply and extending downward to a level in proximity tothe normal water seal being of sufficient area for escape of air withnegligible rise in pressure, and means for sealing said vent when theair from the rim is substantially displaced.

JAMES M. TEAHEN.

